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甲苯器檢測管122DL

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    • 甲苯器檢測管122DL C6H5CH3 Toluene，Measuring Range 2 to 500 ppm Sampling Hours 1 to10 hours Detecting Limit 2 ppm (10 hours)甲苯器檢測管價格，甲苯器檢測管122DL C6H5CH3 Toluene 甲苯器檢測管122DL C6H5CH3 Toluene的詳細介紹 甲苯器檢測管122DL C6H5CH3 Toluene Toluene No.122DL C6H5CH3 Performance Measuring Range 2 to 500 ppm Sampling Hours 1 to10 hours Detecting Limit 2 ppm (10hours) Color Change White → Brown Reaction Principle Toluene react withformaldehyde to form condensation polymer, which is brown incolour. Coefficient ofVariation 10%(for 20 to 500 ppm-hr) ShelfLife 2 Year Correctionsfor temperature & humidity Temperature correction isnecessary Store the tubes atcool and dark place. Possible coexisting substances and theirinterferences (NOTE) Substance Concentration Interference Change colour byitself to Aromatichydrocarbons + Brown hols, Ketones, Esters 30ppm No No Othersubstance measurable with this detectortube Substance CorrectionFactor SamplingTime MeasuringRange Xylene Factor: 1.7 1 to 10 3.4 to850 ppm Ethyl benzene Factor: 1.4 1 to 10 2.8 to700 ppm Cumene Factor: 1.7 1 to 10 3.4 to 850 ppm Benzene Factor: 1.2 1 to 10 2.4 to 600 ppm Stylene Factor: 13 1 to 10 26 to 6500 ppm Calibration gasgeneration Diffusion tubemethod TLV-TWA TLV-STEL Explosive range 20 ppm - 1.4to 6.7%

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